The correct answer is that the policy grants full administrative access to all RDS resources in the account. This is because the IAM policy, as shown, uses a wildcard `"Action": "rds:*"` and `"Resource": "*"`, which allows every possible RDS API action—including creating, modifying, deleting, and terminating instances—on every RDS resource without any regional or resource-level restriction. On the AWS Certified Database Specialty DBS-C01 exam, this scenario tests your understanding of the principle of least privilege and how overly permissive IAM policies for RDS can lead to unintended data loss or configuration changes. A common trap is assuming that a policy without an explicit `"Effect": "Deny"` is safe, but the absence of restrictions is itself the vulnerability. Remember the memory tip: “Star in Action, Star in Resource equals Full Admin on your course.”
DBS-C01 Database Security Practice Question
This DBS-C01 practice question tests your understanding of database security. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Network Topology
Refer to the exhibit. A developer created an IAM policy with the above command and attached it to a user. What is the security implication of this policy?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The policy grants full administrative access to all RDS resources in the account.
The policy allows all RDS actions on all resources. This gives the user full administrative access to all RDS resources in the account, which is overly permissive and violates least privilege. Option A is wrong because the policy does not restrict to a specific region. Option C is wrong because it does allow modifying instances. Option D is wrong because it does not restrict to specific instances.
Key principle: Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The policy restricts access to only one specific DB instance.
Why it's wrong here
Resource "*" includes all instances.
✗
The policy allows only actions in the us-east-1 region.
Why it's wrong here
Resource "*" includes all regions.
✓
The policy grants full administrative access to all RDS resources in the account.
Why this is correct
This is the security risk.
Related concept
Authentication checks who the user is.
✗
The policy only allows read-only access to RDS.
Why it's wrong here
Action rds:* includes all actions, including write and delete.
Common exam traps
Common exam trap: authentication is not authorization
Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.
Detailed technical explanation
How to think about this question
This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.
KKey Concepts to Remember
Authentication checks who the user is.
Authorization controls what the user is allowed to do after login.
Privilege levels affect access to EXEC and configuration commands.
AAA, TACACS+ and RADIUS can separate login success from command access.
TExam Day Tips
→Do not assume successful login means full administrative access.
→Look for words such as cannot enter configuration mode, privilege level, authorization or command access.
→Separate login problems from permission problems before choosing the answer.
Key takeaway
Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related DBS-C01 questions on access control and AAA configuration.
Database Security — This question tests Database Security — Authentication checks who the user is..
What is the correct answer to this question?
The correct answer is: The policy grants full administrative access to all RDS resources in the account. — The policy allows all RDS actions on all resources. This gives the user full administrative access to all RDS resources in the account, which is overly permissive and violates least privilege. Option A is wrong because the policy does not restrict to a specific region. Option C is wrong because it does allow modifying instances. Option D is wrong because it does not restrict to specific instances.
What should I do if I get this DBS-C01 question wrong?
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related DBS-C01 questions on access control and AAA configuration.
What is the key concept behind this question?
Authentication checks who the user is.
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